How to insert data from 2 tables into third table

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Hi friends

I have two tables 1) Leavesperyear
Columns:
LeaveId LeaveCount
1 12
2 12
..............etc. 6 types of leaves
2) EmployerMaster
Columns:
Empid Empname
1 Rama
2 Devi

I have third table : EmployeeLeavesList
Columns:
Empid LeaveId Noofleaves
1 1 12
1. 2. 12
...up to 6 leaves
2 1. 12
2. 2. 12
..like this data should be inserted into third table for all employees.The noofleaves should be come from first table.
If Employee gender is male leaveid 6 should not assign to that employee for female it should be assign.

Based on this conditions how to achieve this by sqlquery???

What I have tried:

I tried with joins and insert statement with select query

Posted 28-Nov-16 3:49am

prasanna204

Updated 29-Nov-16 2:17am

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Comments

Tomas Takac 28-Nov-16 10:16am

In the first table you have leaves aggregated for all employees. There is no way you can break it back to employee level, not without more information anyway. I would suggest you store data as in EmployeeLeavesList then you can easily generate Leavesperyear from that.

3 solutions

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Member 12146603 · Answer 1 · 2016-11-28T04:59:00

Solution 1

EmployerMaster table should have a relation to Leavesperyear table. There should be a foreign key on the EmployerMaster table. If these table are the master tables, then there should be a transaction table. Transaction table is where the INPUTS of employee and their leaves should be stored.

Posted 28-Nov-16 4:59am

Member 12146603

Daniel Jones · Answer 2 · 2016-11-28T17:35:00

Solution 2

SQL

SELECT	A.Col1, A.Col2, B.Col1, B.Col2
INTO	Table3
FROM	Table1 A
INNER JOIN      Table2 B ON A.Col1 = B.Col1

Posted 28-Nov-16 17:35pm

Daniel Jones

Rashmikants Monpara · Answer 3 · 2016-11-29T02:17:00

Solution 3

Hi Please Add colunm Empid in Leavesperyear table and after run below query

SQL

insert into EmployeeLeavesList
select em.Empid,LeaveId,LeaveCount from Leavesperyear as le , EmployerMaster as em
where le.Empid=em.Empid

Posted 29-Nov-16 2:17am

Rashmikants Monpara